X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FSchema%2FLoader%2FDBI%2FSybase.pm;h=cfcd57b9df8ec5a3b59aa80c5584b1bbe6d8932d;hb=1fa1884903b09903ce89a3814e41bac9e91eea9d;hp=d5111e7377c1315057960ab46d3d971a0b0a6a38;hpb=c9373b79cecb2bde4c0f07f4068ca38b1646fe34;p=dbsrgits%2FDBIx-Class-Schema-Loader.git

diff --git a/lib/DBIx/Class/Schema/Loader/DBI/Sybase.pm b/lib/DBIx/Class/Schema/Loader/DBI/Sybase.pm
index d5111e7..cfcd57b 100644
--- a/lib/DBIx/Class/Schema/Loader/DBI/Sybase.pm
+++ b/lib/DBIx/Class/Schema/Loader/DBI/Sybase.pm
@@ -9,7 +9,7 @@ use base qw/
 use Carp::Clan qw/^DBIx::Class/;
 use Class::C3;
 
-our $VERSION = '0.04999_06';
+our $VERSION = '0.04999_13';
 
 =head1 NAME
 
@@ -30,6 +30,8 @@ See L<DBIx::Class::Schema::Loader::Base>.
 
 =cut
 
+sub _is_case_sensitive { 1 }
+
 sub _setup {
     my $self = shift;
 
@@ -44,7 +46,8 @@ sub _rebless {
     my $dbh = $self->schema->storage->dbh;
     my $DBMS_VERSION = @{$dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2];
     if ($DBMS_VERSION =~ /^Microsoft /i) {
-        my $subclass = 'DBIx::Class::Schema::Loader::DBI::MSSQL';
+        $DBMS_VERSION =~ s/\s/_/g;
+        my $subclass = "DBIx::Class::Schema::Loader::DBI::Sybase::$DBMS_VERSION";
         if ($self->load_optional_class($subclass) && !$self->isa($subclass)) {
             bless $self, $subclass;
             $self->_rebless;
@@ -56,7 +59,7 @@ sub _table_columns {
     my ($self, $table) = @_;
 
     my $dbh = $self->schema->storage->dbh;
-    my $columns = $dbh->selectcol_arrayref(qq{SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = '$table' AND type = 'U')});
+    my $columns = $dbh->selectcol_arrayref(qq{SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = @{[ $dbh->quote($table) ]} AND type = 'U')});
 
     return $columns;
 }
@@ -65,7 +68,7 @@ sub _table_pk_info {
     my ($self, $table) = @_;
 
     my $dbh = $self->schema->storage->dbh;
-    my $sth = $dbh->prepare(qq{sp_pkeys '$table'});
+    my $sth = $dbh->prepare(qq{sp_pkeys @{[ $dbh->quote($table) ]}});
     $sth->execute;
 
     my @keydata;
@@ -80,19 +83,45 @@ sub _table_pk_info {
 sub _table_fk_info {
     my ($self, $table) = @_;
 
+    # check if FK_NAME is supported
+
+    my $dbh = $self->schema->storage->dbh;
+    local $dbh->{FetchHashKeyName} = 'NAME_lc';
+    # hide "Object does not exist in this database." when trying to fetch fkeys
+    local $dbh->{syb_err_handler} = sub { return $_[0] == 17461 ? 0 : 1 }; 
+    my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = @{[ $dbh->quote($table) ]}});
+    $sth->execute;
+    my $row = $sth->fetchrow_hashref;
+
+    return unless $row;
+
+    if (exists $row->{fk_name}) {
+        $sth->finish;
+        return $self->_table_fk_info_by_name($table);
+    }
+
+    $sth->finish;
+    return $self->_table_fk_info_builder($table);
+}
+
+sub _table_fk_info_by_name {
+    my ($self, $table) = @_;
     my ($local_cols, $remote_cols, $remote_table, @rels);
+
     my $dbh = $self->schema->storage->dbh;
+    local $dbh->{FetchHashKeyName} = 'NAME_lc';
     # hide "Object does not exist in this database." when trying to fetch fkeys
-    $dbh->{syb_err_handler} = sub { return 0 if $_[0] == 17461; }; 
-    my $sth = $dbh->prepare(qq{sp_fkeys \@FKTABLE_NAME = '$table'});
+    local $dbh->{syb_err_handler} = sub { return $_[0] == 17461 ? 0 : 1 }; 
+    my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = @{[ $dbh->quote($table) ]}});
     $sth->execute;
 
     while (my $row = $sth->fetchrow_hashref) {
-        next unless $row->{FK_NAME};
-        my $fk = $row->{FK_NAME};
-        push @{$local_cols->{$fk}}, $row->{FKCOLUMN_NAME};
-        push @{$remote_cols->{$fk}}, $row->{PKCOLUMN_NAME};
-        $remote_table->{$fk} = $row->{PKTABLE_NAME};
+        my $fk = $row->{fk_name};
+        next unless defined $fk;
+
+        push @{$local_cols->{$fk}}, $row->{fkcolumn_name};
+        push @{$remote_cols->{$fk}}, $row->{pkcolumn_name};
+        $remote_table->{$fk} = $row->{pktable_name};
     }
 
     foreach my $fk (keys %$remote_table) {
@@ -106,13 +135,74 @@ sub _table_fk_info {
     return \@rels;
 }
 
-sub _table_uniq_info {
+sub _table_fk_info_builder {
     my ($self, $table) = @_;
 
     my $dbh = $self->schema->storage->dbh;
-    my $sth = $dbh->prepare(qq{sp_helpconstraint \@objname='$table', \@nomsg='nomsg'});
+    local $dbh->{FetchHashKeyName} = 'NAME_lc';
+    # hide "Object does not exist in this database." when trying to fetch fkeys
+    local $dbh->{syb_err_handler} = sub { return 0 if $_[0] == 17461; }; 
+    my $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = @{[ $dbh->quote($table) ]}});
     $sth->execute;
 
+    my @fk_info;
+    while (my $row = $sth->fetchrow_hashref) {
+        (my $ksq = $row->{key_seq}) =~ s/\s+//g;
+
+        my @keys = qw/pktable_name pkcolumn_name fktable_name fkcolumn_name/;
+        my %ds;
+        @ds{@keys}   = @{$row}{@keys};
+        $ds{key_seq} = $ksq;
+
+        push @{ $fk_info[$ksq] }, \%ds;
+    }
+
+    my $max_keys = $#fk_info;
+    my @rels;
+    for my $level (reverse 1 .. $max_keys) {
+        my @level_rels;
+        $level_rels[$level] = splice @fk_info, $level, 1;
+        my $count = @{ $level_rels[$level] };
+
+        for my $sub_level (reverse 1 .. $level-1) {
+            my $total = @{ $fk_info[$sub_level] };
+
+            $level_rels[$sub_level] = [
+                splice @{ $fk_info[$sub_level] }, $total-$count, $count
+            ];
+        }
+
+        while (1) {
+            my @rel = map shift @$_, @level_rels[1..$level];
+
+            last unless defined $rel[0];
+
+            my @local_columns  = map $_->{fkcolumn_name}, @rel;
+            my @remote_columns = map $_->{pkcolumn_name}, @rel;
+            my $remote_table   = $rel[0]->{pktable_name};
+
+            push @rels, {
+                local_columns => \@local_columns,
+                remote_columns => \@remote_columns,
+                remote_table => $remote_table
+            };
+        }
+    }
+
+    return \@rels;
+}
+
+sub _table_uniq_info {
+    my ($self, $table) = @_;
+
+    local $SIG{__WARN__} = sub {};
+
+    my $dbh = $self->schema->storage->dbh;
+    local $dbh->{FetchHashKeyName} = 'NAME_lc';
+    my $sth = $dbh->prepare(qq{sp_helpconstraint \@objname=@{[ $dbh->quote($table) ]}, \@nomsg='nomsg'});
+    eval { $sth->execute };
+    return if $@;
+
     my $constraints;
     while (my $row = $sth->fetchrow_hashref) {
         if (exists $row->{constraint_type}) {
@@ -144,7 +234,7 @@ sub _extra_column_info {
     my ($table, $column) = @$info{qw/TABLE_NAME COLUMN_NAME/};
 
     my $dbh = $self->schema->storage->dbh;
-    my $sth = $dbh->prepare(qq{SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = '$table') AND (status & 0x80) = 0x80 AND name = '$column'});
+    my $sth = $dbh->prepare(qq{SELECT name FROM syscolumns WHERE id = (SELECT id FROM sysobjects WHERE name = @{[ $dbh->quote($table) ]}) AND (status & 0x80) = 0x80 AND name = @{[ $dbh->quote($column) ]}});
     $sth->execute();
 
     if ($sth->fetchrow_array) {
@@ -161,7 +251,12 @@ L<DBIx::Class::Schema::Loader::DBI>
 
 =head1 AUTHOR
 
-Justin Hunter C<justin.d.hunter@gmail.com>
+See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
+
+=head1 LICENSE
+
+This library is free software; you can redistribute it and/or modify it under
+the same terms as Perl itself.
 
 =cut